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https://github.com/brain-hackers/u-boot-brain
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![Heiko Schocher](/assets/img/avatar_default.png)
There was for long time no activity in the 4xx area. We need to go further and convert to Kconfig, but it turned out, nobody is interested anymore in 4xx, so remove it. Signed-off-by: Heiko Schocher <hs@denx.de>
203 lines
5.7 KiB
C
203 lines
5.7 KiB
C
#ifndef __SERIAL_H__
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#define __SERIAL_H__
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#include <post.h>
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struct serial_device {
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/* enough bytes to match alignment of following func pointer */
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char name[16];
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int (*start)(void);
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int (*stop)(void);
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void (*setbrg)(void);
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int (*getc)(void);
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int (*tstc)(void);
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void (*putc)(const char c);
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void (*puts)(const char *s);
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#if CONFIG_POST & CONFIG_SYS_POST_UART
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void (*loop)(int);
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#endif
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struct serial_device *next;
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};
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void default_serial_puts(const char *s);
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extern struct serial_device serial_smc_device;
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extern struct serial_device serial_scc_device;
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extern struct serial_device *default_serial_console(void);
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#if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) || \
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defined(CONFIG_MPC86xx) || \
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defined(CONFIG_TEGRA) || defined(CONFIG_SYS_COREBOOT) || \
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defined(CONFIG_MICROBLAZE)
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extern struct serial_device serial0_device;
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extern struct serial_device serial1_device;
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#endif
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extern struct serial_device eserial1_device;
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extern struct serial_device eserial2_device;
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extern struct serial_device eserial3_device;
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extern struct serial_device eserial4_device;
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extern struct serial_device eserial5_device;
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extern struct serial_device eserial6_device;
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extern void serial_register(struct serial_device *);
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extern void serial_initialize(void);
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extern void serial_stdio_init(void);
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extern int serial_assign(const char *name);
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extern void serial_reinit_all(void);
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/* For usbtty */
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#ifdef CONFIG_USB_TTY
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extern int usbtty_getc(void);
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extern void usbtty_putc(const char c);
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extern void usbtty_puts(const char *str);
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extern int usbtty_tstc(void);
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#else
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/* stubs */
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#define usbtty_getc() 0
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#define usbtty_putc(a)
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#define usbtty_puts(a)
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#define usbtty_tstc() 0
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#endif /* CONFIG_USB_TTY */
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struct udevice;
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/**
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* struct struct dm_serial_ops - Driver model serial operations
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*
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* The uclass interface is implemented by all serial devices which use
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* driver model.
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*/
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struct dm_serial_ops {
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/**
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* setbrg() - Set up the baud rate generator
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*
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* Adjust baud rate divisors to set up a new baud rate for this
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* device. Not all devices will support all rates. If the rate
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* cannot be supported, the driver is free to select the nearest
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* available rate. or return -EINVAL if this is not possible.
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*
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* @dev: Device pointer
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* @baudrate: New baud rate to use
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* @return 0 if OK, -ve on error
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*/
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int (*setbrg)(struct udevice *dev, int baudrate);
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/**
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* getc() - Read a character and return it
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*
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* If no character is available, this should return -EAGAIN without
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* waiting.
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*
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* @dev: Device pointer
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* @return character (0..255), -ve on error
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*/
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int (*getc)(struct udevice *dev);
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/**
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* putc() - Write a character
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*
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* @dev: Device pointer
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* @ch: character to write
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* @return 0 if OK, -ve on error
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*/
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int (*putc)(struct udevice *dev, const char ch);
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/**
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* pending() - Check if input/output characters are waiting
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*
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* This can be used to return an indication of the number of waiting
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* characters if the driver knows this (e.g. by looking at the FIFO
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* level). It is acceptable to return 1 if an indeterminant number
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* of characters is waiting.
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*
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* This method is optional.
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*
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* @dev: Device pointer
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* @input: true to check input characters, false for output
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* @return number of waiting characters, 0 for none, -ve on error
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*/
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int (*pending)(struct udevice *dev, bool input);
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/**
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* clear() - Clear the serial FIFOs/holding registers
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*
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* This method is optional.
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*
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* This quickly clears any input/output characters from the UART.
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* If this is not possible, but characters still exist, then it
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* is acceptable to return -EAGAIN (try again) or -EINVAL (not
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* supported).
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*
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* @dev: Device pointer
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* @return 0 if OK, -ve on error
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*/
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int (*clear)(struct udevice *dev);
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#if CONFIG_POST & CONFIG_SYS_POST_UART
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/**
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* loop() - Control serial device loopback mode
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*
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* @dev: Device pointer
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* @on: 1 to turn loopback on, 0 to turn if off
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*/
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int (*loop)(struct udevice *dev, int on);
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#endif
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};
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/**
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* struct serial_dev_priv - information about a device used by the uclass
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*
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* @sdev: stdio device attached to this uart
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*/
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struct serial_dev_priv {
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struct stdio_dev *sdev;
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};
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/* Access the serial operations for a device */
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#define serial_get_ops(dev) ((struct dm_serial_ops *)(dev)->driver->ops)
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void amirix_serial_initialize(void);
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void arc_serial_initialize(void);
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void arm_dcc_initialize(void);
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void asc_serial_initialize(void);
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void atmel_serial_initialize(void);
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void au1x00_serial_initialize(void);
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void bfin_jtag_initialize(void);
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void bfin_serial_initialize(void);
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void bmw_serial_initialize(void);
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void clps7111_serial_initialize(void);
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void cogent_serial_initialize(void);
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void cpci750_serial_initialize(void);
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void evb64260_serial_initialize(void);
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void imx_serial_initialize(void);
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void iop480_serial_initialize(void);
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void jz_serial_initialize(void);
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void leon2_serial_initialize(void);
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void leon3_serial_initialize(void);
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void lh7a40x_serial_initialize(void);
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void lpc32xx_serial_initialize(void);
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void marvell_serial_initialize(void);
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void max3100_serial_initialize(void);
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void mcf_serial_initialize(void);
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void ml2_serial_initialize(void);
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void mpc85xx_serial_initialize(void);
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void mpc8xx_serial_initialize(void);
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void mxc_serial_initialize(void);
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void mxs_auart_initialize(void);
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void ns16550_serial_initialize(void);
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void oc_serial_initialize(void);
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void p3mx_serial_initialize(void);
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void pl01x_serial_initialize(void);
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void pxa_serial_initialize(void);
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void s3c24xx_serial_initialize(void);
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void s5p_serial_initialize(void);
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void sa1100_serial_initialize(void);
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void sandbox_serial_initialize(void);
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void sconsole_serial_initialize(void);
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void sh_serial_initialize(void);
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void uartlite_serial_initialize(void);
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void zynq_serial_initialize(void);
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#endif
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